Wall and method of making the same



AWE??? 392$; F. M. CURRAN 0 WALL AND METHOD OF MAKING THE SAME Filed May 19, 1928 I .ialrrietvililn Infill;

.mmx I.

I mmame oonrona'rron, a conronarron or new YORK.

Patented Apr. 1929.

UNITED STATES CURB-LN, O! GRAND mIiDS, MICHIGAN, :ASSIGNOR 1'0 IISKELI'IE MANU- PATEN'IY" OFFICE.)

wannm usr'non or mine rim sans.

Application!!! m 19,

Metal sheathed lumber is largely used in making boxes, cabinetsand other structures having walls arranged at an angle to each other; two adjacent walls being produced by bendin a panel that has been properly groov so that the metal on the outer side will be'continuous. Usually panels sheathed on one-side only have been employed, the groove or grooves being. cut through the wooden core. In any event, there has been only a single thickness of material, namely the outer metal sheathing, at the corners. The object of the present invention is to make it possible to produce a continuous wall arranged in two sections lyin at an angle to each other from lumber sheat ed with metal on both sides, without interrupting the continuity of the metal on either side, and without subjecting the glued joints between the metal and the core to injurious stresses.

A further object of the present invention may be said to make it possible to produce -a continuous wall comprising two sections arranged at right angles to each other and forming a sharp corner from lumber sheathed with metal on both faces, without interruptin the continuity of the metal on either side.

carrying out my invention, I form the usual or any suitable groove in the core member of the panel and cause the sheathing on the side to be extended into the groove as a lining therefor. Then, when the panel is bent along the line of the groove, a fold'is produced in the sheathin on the inner side; this fold constitutin a rib extending diagonally in the outwar direction toward or in proximity to the outer corner. This rib therefore constitutes a stifi'ening member so.

that, viewed in one of its aspects, my invention may be said to have for its object to produce a continuous wall comprising two sections arranged at an angle to each other from lumber sheathed with metal on both sides, wherein there will be a metal strengthening rib in the angle of the wall.-

The various features of novelty whereby m invention is characterized will hereina ter be pointed out with particularity in the claims; but, for a full understanding of my invention and ofits objects andadvantages, reference may be had to the following de 1928, sem 279,187.

tailed description taken in connection with 0t er, and prepared for assembly; Fig. 2,

shows the com eted panel; Fig. 3 shows the panel bent to orm two wall sections at right angles to each other;Fig. 4 is a cross-section of a panel in which the gluinghas been comgleted and the metal on one face is about to e pressed down into a groove, to illustrate another embodiment of my invention; Fig. 5 1s a v ew similar to Fig. 1, showing the sheathlng elements and the core elements separated from each other preparatory to the glulng operation, according to another form 0t my invention; Fig. 6 is a view similar to Fig. 5, illustrating a conditon to bring about a rounded corner; Fig. 7 is a view similar to Fig. 3, showing the panel of Fig. 6 glued and bent to produce two wall sectlons at right angles to each other; Fig. 8 isa view similar to Figs. 1, 5 and 6, illustratin another modification"; Fi 9 is a section t rough the anel made by g uing to ether the elements s own in Fig. 8, the sheat 'ng on the inner side havmg been depressed into the groove; and Fig. 10 is a cross-section throu h the wall formed by bending the panel of Fig. 9 to produce two wall sections at right an les to each other.

Referring to Flg. 1 o the drawing, 1 represents a core of wood or any other suitable material to one face of which is glued a thin sheet of metal 2 Across the core is cut a V- shaped groove 3 the wide portion of which opens out from'the unsheathed face of the core while the a x is at or in proximity to the sheathin Iii tion I provi ea second sheet metal sheathing 4 deformed, as indicated at 5, to roduce a trough-like part that will fit into t e groove 3 when the sheathing is laid on the exposed face of the core. In this form of my invention two luing operations are required to complete t e panel; the members 1 and 2 being first glued together and, after the groove has been cut, a second luing'operation is. erformed, whereby t e sheathing 4 is attac ed to the core as indicated in Fig. 2. After the panel has been completed it may be accordance with my inven-' bent along the line of the valley to produce two sections arranged at ri ht angles to each other, as indicated at A an i B in Fig. 3. It will be seen that in bending the panel the elements forming the sides of the trough in the sheathing on the inner side come together so as to produce a fold 6 extending diagonally through the structure at the corner.

. This fold constitutes a stiffening rib that I the gluing operation has been completed, the

metal overlying the groove may be pressed down into the same, as Indicated in dotted lines in Fig. 4 by any suitable means as, for

' fication in which the core is made of two sec-v exam le, by a die C. I

In ig. 5 there is illustrated another moditions 8 and 9 beveled at their meeting ed "es, as indicated at 10 and 11, so that when t ey' are placed together a V-shaped groove is formed between them. The two sheathings 2 and 4, are like those shown in Fig. 1. Glue is applied between the core and both sheathing s eets and, when the parts are pro erly assembled, the gluing is effected by a single operation. a

The method illustrated in Fig. 5 lends itself well to the production of wall sections arranged at an angle to each other and forming a rounded outer corner. Thus, as shown in Fig. 6, the core sections 12 and 13, in-addition to being beveled as at 10 and 11, are also beveled on the opposite side as indicated at 14 and 15. The trough-like element 16 in the upper sheathin 17 -is the same as the trough 5 in Fi s. 1 an 5, but somewhat shallower.

After t e several elements have been glued together, the panel may be bent to form two walls arranged at right angles to each other, as indicated at D and E in Fig. 7 the corner 18 bein rounded instead of sharp. The rib 19 pro uced by the fold in the sheathing on the inner side extends diagonally through the wall to the outer sheathing, as indicated at 19.

If desired, instead of employing a V- shaped'groove in the core, the core may be made as in Fig. 8, comprising sections 20 and 21 having vertical edges. In assembling the elements of a panel together for the purpose of gluing them the core sections are placed between the plain metal sheets 2 and 22 with their edges spaced apart. When the panel is glued, it will have a chamber 23, rectangular in cross-section,extending entirely across the same. The sheathing 22 is then rolled or fpressed down into this chamber, as indicate at 24, by means of a roller or die C. When the panel is bent a chamber 25 will be left in the corner, as indicated in Fig. 10. The rib 26, formed by the bringing together of the two sides of the trough 24, extends diagonally across this chamber, preferably into engagement with the outer sheathing at the bend in the latter.

I have illustrated my' invention as a plied to walls arranged in sections at right angles toeach other, with shar and roun ed corners but it will of course e understood that the size of'the angle ma be varied to suit the conditions. It will fiirthermore be understood that any desired number of bends may be made in the same panel, since additional bends require only a duplication of the features heretofore explained.

- It will thus be seen that I have produced a simple and novel continuous wall construction and method of making the same, whereby two sections arran ed at any desired angle to each other an havin a sharp or a rounded corner will be provi ed with a continuous metal sheathing on both the inside and the outside and with a stiffening and rein'forcin rib for the corner.

While have illustrated and described with particularity only a few preferred ways of carrying out my invention, I do not desire to be limited to the details thus illustrated and described; but intend to cover all forms and methods coming within the definitions of my invention constituting the appended clalms.

I claim 1. A structure comprising a continuous wall in two sections at an angle to each other, said wall consisting of a core sheathed on both faces with sheet metal, the metal on the inner side being folded into a rib extend.- ing diagonally through the core at the corner.

2. A structure comprising a continuous wall arranged in two sections at an angle to each other, said wall consisting of a core covered on both faces with sheet metal cemented thereto, and a metal rib extending diagonally through the core at the corner.

3. A structure comprising a continuous wall arranged in two sections at an angle to each other, said wall consisting of a core sheathed on both faces with sheet metal cemented thereto, the inner sheathing being folded upon itself at the corner to form a rib containing sufiicient metal to compensate for the difference in length between the inner and outer sheathings in the zone of the corner.

4. A structure comprising a continuous wall arranged in two sections at an angle to each other, said wall consisting of a core sheathed with metal on both faces, thecore being cut away at the corner between the two sections, and the sheathing on the inner side being folded into the space between face defressed into a valley extending across the adjacent ends of the core. I the wa 1, and then bending the wall along 5. The method of producing a wall in two the line of the valley to bring the sides of 10 sections arranged at an angle-to each other, the valley toward each other. 5 which consists in producing a flat panel'com- In testimony whereof, I sign this specificaprising a core sheathed on both faces with tion. metal with a portion of the sheathing on one 7 FRANK M. GURRAN. 

